Development of instability of dark solitons generated by a flow of Bose-Einstein condensate past a concave corner

A. M. Kamchatnov; S. V. Korneev

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arXiv · 1010.2100

Development of instability of dark solitons generated by a flow of Bose-Einstein condensate past a concave corner

A. M. Kamchatnov·S. V. Korneev

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Abstract

The stability of dark solitons generated by a supersonic flow of a Bose-Einstein condensate past a concave corner (or a wedge) is studied. It is shown that solitons in the dispersive shock wave generated at the initial moment of time demonstrate a snake instability during their evolution to stationary curved solitons. Time of decay of soliton to vortices agrees very well with analytical estimates of the instability growth rate.

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A. M. Kamchatnov, S. V. Korneev. 2010-10-11. Development of instability of dark solitons generated by a flow of Bose-Einstein condensate past a concave corner. https://arxiv.org/abs/1010.2100

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